Tree Trimming at Upolu VORTAC (UPP VOR)
The Federal Aviation Administration is issuing this Screening Information Request (SIR) for bi-annual tree trimming and vegetation control services around the UPP VOR antenna to prevent interference o...
The Federal Aviation Administration is issuing this Screening Information Request (SIR) for bi-annual tree trimming and vegetation control services around the UPP VOR antenna to prevent interference o...